The White Sox catcher not only had better vision but he easily surpassed his biggest objective as his early three-run home run gave Jose Quintana ample support and the White Sox rolled to a 7-0 win over the Toronto Blue Jays in front of 15,684 at Rogers Centre. Quintana earned the victory with 6 2/3 shutout innings and the White Sox, who finished with 11 hits, earned their first shutout here since June 2007.

“I didn’t feel fooled on pitches, which was good,” Flowers said. “It just felt a little more smooth, like I had a little more freedom, a little more kind of swagger, looseness feeling on all my swings today. It felt very good.”

Flowers’ confidence was evident from the outset.

Mired in a 2-for-30 slump in which he admits he sometimes felt fooled at the plate, Flowers spent his off-day Tuesday in the cage working on a more open batting stance in hopes of better vision.

With two on and two out in a scoreless game, Flowers took a close 1-1 fastball for a ball before he deposited J.A. Happ’s next offering into the stands in right-center to give the Sox a 3-0 lead.

“Coming through like that was big for him,” White Sox manager Robin Ventura said. “You go through a stretch like that and it’s not necessarily trying to get a hit but help your team win. And when you hit a home run like that, it’s a big relief because you know you’re helping out.”

At that point, Quintana (2-1) had already established fastball command. So Flowers’ 421-foot homer only further cemented in the young pitcher’s mind that he was in for a good evening.

Quintana attacked the strike zone with his fastball and got ahead of Blue Jays hitters with strikes on 72 of 104 pitches.

“(Fastball command) allowed me to expand a little bit and use the other pitches as well, mix them in,” Quintana said. “The command of the fastball allowed me to do everything else.”